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Statements

Subject Item
n2:RIV%2F61989100%3A27730%2F14%3A86092030%21RIV15-MSM-27730___
rdf:type
skos:Concept n19:Vysledek
dcterms:description
The investigation of the effect of moisture on the release and enrichment of heavy metals during pyrolysis of municipal solid waste (MSW) is essential. This is important due to: (i) the increasing amount of MSW per capita resulting in an increasing amount of metals in MSW, consequently leading to an enhancement of these metals in the solid product of pyrolysis beyond the normalized level; (ii) the effect of moisture on the overall cost of the pyrolysis process; and (iii) the utilization of the pyrolysis products. Seven metals were selected for evaluation and they included: As, Cd, Cr, Hg, Ni, Pb and V. The MSW samples with moisture contents of 0, 30, and 65 wt.% were investigated. In general, a diminution and an enhancement of metal content was observed for As, Cd, Hg, Ni, and V in both liquid and solid fractions of pyrolysis with an increase of the MSW moisture. A consistent trend was also observed for the relative enrichment index (REI) and release of heavy metals for the majority of metals investigated. That is, a reduction of REI and a release, ipso facto an increase of volatility, was observed for As, Cr, Cd, Ni, and V with an increase of the MSW moisture. Whereas, the inconsistent results were obtained for Pb and Hg. The effect of moisture on the REI and release was greater at the higher level of the MSW moisture (i.e. at 65 wt.%) than at the lower level (i.e. 30 wt.%) for Pb, and more remarkable at the lower lever of the MSW moisture than at the higher level for Hg. In summary, the results of this study demonstrate that drying of the MSW may not be a necessary requirement for the MSW management by pyrolysis, since an increase of the metals’ volatility enhances the removal of these metals from the solid product of pyrolysis and makes the process more suitable for commercial utilization. The investigation of the effect of moisture on the release and enrichment of heavy metals during pyrolysis of municipal solid waste (MSW) is essential. This is important due to: (i) the increasing amount of MSW per capita resulting in an increasing amount of metals in MSW, consequently leading to an enhancement of these metals in the solid product of pyrolysis beyond the normalized level; (ii) the effect of moisture on the overall cost of the pyrolysis process; and (iii) the utilization of the pyrolysis products. Seven metals were selected for evaluation and they included: As, Cd, Cr, Hg, Ni, Pb and V. The MSW samples with moisture contents of 0, 30, and 65 wt.% were investigated. In general, a diminution and an enhancement of metal content was observed for As, Cd, Hg, Ni, and V in both liquid and solid fractions of pyrolysis with an increase of the MSW moisture. A consistent trend was also observed for the relative enrichment index (REI) and release of heavy metals for the majority of metals investigated. That is, a reduction of REI and a release, ipso facto an increase of volatility, was observed for As, Cr, Cd, Ni, and V with an increase of the MSW moisture. Whereas, the inconsistent results were obtained for Pb and Hg. The effect of moisture on the REI and release was greater at the higher level of the MSW moisture (i.e. at 65 wt.%) than at the lower level (i.e. 30 wt.%) for Pb, and more remarkable at the lower lever of the MSW moisture than at the higher level for Hg. In summary, the results of this study demonstrate that drying of the MSW may not be a necessary requirement for the MSW management by pyrolysis, since an increase of the metals’ volatility enhances the removal of these metals from the solid product of pyrolysis and makes the process more suitable for commercial utilization.
dcterms:title
The effect of moisture on the release and enrichment of heavy metals during pyrolysis of municipal solid waste The effect of moisture on the release and enrichment of heavy metals during pyrolysis of municipal solid waste
skos:prefLabel
The effect of moisture on the release and enrichment of heavy metals during pyrolysis of municipal solid waste The effect of moisture on the release and enrichment of heavy metals during pyrolysis of municipal solid waste
skos:notation
RIV/61989100:27730/14:86092030!RIV15-MSM-27730___
n3:aktivita
n16:P
n3:aktivity
P(ED2.1.00/03.0069)
n3:cisloPeriodika
3
n3:dodaniDat
n8:2015
n3:domaciTvurceVysledku
n4:4952324 Corsaro, Agnieszka n4:9024425 n4:6274676 n4:6584780
n3:druhVysledku
n17:J
n3:duvernostUdaju
n10:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
13410
n3:idVysledku
RIV/61989100:27730/14:86092030
n3:jazykVysledku
n18:eng
n3:klicovaSlova
, enrichment factor; heavy metal; municipal solid waste; moisture; Pyrolysis
n3:klicoveSlovo
n6:Pyrolysis n6:enrichment%20factor n6:moisture n6:municipal%20solid%20waste n6:heavy%20metal
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[833A79D229CB]
n3:nazevZdroje
Waste Management and Research
n3:obor
n13:DM
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:projekt
n11:ED2.1.00%2F03.0069
n3:rokUplatneniVysledku
n8:2014
n3:svazekPeriodika
33
n3:tvurceVysledku
Zajonc, Ondřej Raclavská, Helena Hlavsová, Adéla Corsaro, Agnieszka Juchelková, Dagmar
s:issn
0734-242X
s:numberOfPages
8
n12:doi
10.1177/0734242X14568609
n5:organizacniJednotka
27730